4-Chloro-2-oxindole

Also known as: 4-chloroindolin-2-one, 4-chloro-1,3-dihydro-2H-indol-2-one, 4-chloro-2-indolinone, 4-chlorooxindole, 4-chloro-2-oxoindole, 4-chloro-2,3-dihydro-1H-indol-2-one, AKOS 207-07, MFCD03787567

4-Chloro-2-oxindole (CAS 20870-77-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H6ClNO and a molecular weight of 167.592 g/mol. Key properties include a melting point of 206-208ºC, a boiling point of 340.3±42.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 159.6±27.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 20870-77-3
Jingsj CID: J-1515245-1
Molecular Formula: C₈H₆ClNO
Molecular Weight: 167.592 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	206-208ºC
Boiling Point	340.3±42.0 °C at 760 mmHg
Density	1.4±0.1 g/cm3
Flash Point	159.6±27.9 °C
Exact Mass	167.013794
PSA	29.10000
LogP	2.16
Vapor Pressure	0.0±0.7 mmHg at 25°C
Refractive Index	1.602

Customs & Trade Information

HS Code	2933790090
Summary	2933790090. other lactams. VAT:17.0%. Tax rebate rate:9.0%. . MFN tariff:9.0%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 4-Chloro-2-oxindole?

The CAS number of 4-Chloro-2-oxindole is 20870-77-3.

What are the molecular formula and molecular weight of 4-Chloro-2-oxindole?

4-Chloro-2-oxindole has molecular formula C8H6ClNO and molecular weight 167.592 g/mol.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "4-Chloro-2-oxindole (CAS 20870-77-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1515245-1 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.